Glabrous. Leaves opposite; lamina elliptic, 5-8 by 2-4 cm, cuneate at the base to a distinct petiole 6—10(—15) mm long, obtuse or rounded at the apex with a small blunt mucro, dull on both sides but slightly darker above; venation pinnate with the midrib and the main laterals visible above and prominent below. Inflorescencess at the nodes, a subcapitate raceme of 1-3 opposite pairs of triads with all flowers sessile; axis 8-13 mm long, with the triads crowded near the apex; peduncles of the triads 0-1 mm long, secund. Corolla in mature bud 6-merous, 23-30 mm long, slender, acute at the apex, mostly red below and green above; petals in the open flower coherent in the lower 2-5 mm. Anther 2.5-3.5 mm long, acute, about equal to the free part of the filament. Fig. 18e.